Barrier

The Barrier worker is used to stop the parallelism inside a workflow. All workers placed between a forker and a barrier worker will perform its actions or calculations using parallelism. When a workflow starts parallelism with a forker worker it will only stop using parallelism after a barrier worker. The barrier worker aggregates all the parallel data in one flow. The The Worker Structure article gives more information about parallelism and barrier features.

Parameters

The Barrier worker must receive specific parameters in order to execute properly. When parameters are not set correctly it may cause the worker to not work as expected.

Upstream Data

Set a list of keys to be passed to the worker. To add more keys click on the Add Linebutton.

Previous Keys

Select the worker to unify the flow through Upstream Data variant.

Filter

Select whether to unify the upstream dataWhole List or only unify the upstream data results that are Not Null using Fixed Options variant.

Results

This worker does not return any result.